在C＃中有条件地将文件目录和子目录移动到另一个目录（仅移动最近5天创建的文件和目录）

Question

My Source directory "D:\\Source"

Destination "D:\\Destination"

source directory contains some files and folders with different creation dates, i want to move all files and folders whose creation date less than last 5 days for example today is 28/11/2015 and i want to Move all files and folders from source before creating 23/11/205.

i'm searching since 2 days but no success.

here is my Attempt

    var sourcePath = "D:\\Source";
    var destinationPath = "D:\\Destination";

    var dInfo = new DirectoryInfo(sourcePath)
    var files = (from filew in dInfo.EnumerateFiles(sourcePath)
                                     orderby filew.CreationTime.Date < DateTime.Now.Date.AddDays(-5) ascending
                                     select filew.Name).Distinct();

var directories = (from filew in dInfo.EnumerateDirectories(sourcePath)
                                 orderby filew.CreationTime.Date < DateTime.Now.Date.AddDays(-5) ascending
                                 select filew.Name).Distinct();
     foreach (var dir in directories)
     {
        var dest = Path.Combine(destinationPath, Path.GetFileName(dir));
                        Directory.Move(dir, dest);
     }

     foreach (var file in files)
     {
        var dest = Path.Combine(destinationPath, Path.GetFileName(file));
                            File.Move(file, dest);
     }

ERROR : Second path fragment must not be a drive or UNC name.

please help me

Answer 1

You have to call EnumerateFiles and EnumerateDirectories without parameters:

dInfo.EnumerateFiles()
dInfo.EnumerateDirectories()

The information about sourcePath is already in the dInfo object. The parameter would be used to apply a filter.

UPDATE:

And the EnumerateFiles() function just returns the file names without pathes. So you should use something like that:

foreach (var file in files)
{
    var src = Path.Combine(sourcePath, file);
    var dest = Path.Combine(destinationPath, file);
    File.Move(src, dest);
}

Answer 2

You would need to do it recursively as there can be sub directories within the directory, where the same rule would apply. Refer to code below.

public static void MoveFilesAndFolders(string sourcePath, string destinationPath)
{
        var directories = Directory.GetDirectories(sourcePath);

        foreach (var directory in directories)
        {
            var subDirectory = new DirectoryInfo(directory);

            //Create sub directory in the destination folder if the business rules is satisfied
            if (DateTime.Today.Subtract(File.GetCreationTime(directory)).Days < 5)
            {
                var newDestinationDirectory = Directory.CreateDirectory(Path.Combine(destinationPath, subDirectory.Name));
                MoveFilesAndFolders(subDirectory.FullName, newDestinationDirectory.FullName);
            }
        }

        foreach (var file in Directory.GetFiles(sourcePath))
        {
            var fileName = Path.GetFileName(file);

            //Copy the file to destination folder if the business rule is satisfied
            if (!string.IsNullOrEmpty(fileName))
            {
                var newFilePath = Path.Combine(destinationPath, fileName);
                if (!File.Exists(newFilePath) && (DateTime.Today.Subtract(File.GetCreationTime(file)).Days < 5)))
                {
                    File.Move(file, newFilePath);
                }
            }
        }
}